XTIOBANCS. 



41 



costae strong ; the interstices divided into quadrangular spaces bv 

 well-marked transverse costae, the spaces slightly traneverse near 

 the base ; towards the apex the costae are closer together. 



Xylobanus regularis. 

 (Plate X. fig. S.) 



Fuscus, depressus, opacus ; thorace flavo, septemareolato, scu- 

 teUo flavo : ehirris parallelis, depressis, quadricostatis, interstitiis 

 regulariter fortiter foveolatis ; femoribus basi tiisco-flavis. 5 . 



Long. 83 lin. 



Hah. Dorey. Xew Guinea ( WaTJace). 



Thorax dull yellow, a little broader than long, rounded in front, 

 constricted behind the middle ; the costa dividing the lateral areolets 

 not very distinct. Elytra parallel, scarcely broader than the thorax ; 

 the four costce strong ; the interstices regularly divided by well- 

 marked transverse costje, the spaces slightly transverse. The base 

 of the femora and the extreme base of the tibite obscure yellow. 

 Sterna reddish yellow. 



Xylobanus privatus. 



(Plate X. fig. 6.) 



Fuscus, paraUelus ; thorace, scuteUo elytrisque ochraceis ; thorace 

 medio postice areola angusta : elytris quadricostatis, interstitiis 

 uniseriatim foveatis. $ . Long. 4| lin. 



Hah. Java {J. C. Bow ring, Esq.). 



This only differs from X. fasfidiosus above described in the thorax. 

 This is shorter and more rounded in front, and instead of having 

 seven areolets, it has only one narrow mesial one, which is joined to 

 the anterior margin by a carina. 



It seems very probable that this may be a variety of X fastidiosus. 



Xylobanus senex. 

 (Plate X. fig. 7.) 



Fusco-niger, opacus ; thorace fusco, medio postice areola angusta, 

 antice carinis tribus ; elytris quadricostatis, interstitiis uniseriatim 

 foveatis, dimidio basali sordide testaceo, foveis atris. $ . 



Long. 4 lin. 



Hah. Borneo ( Wallace). 



This differs from X. hurnilis in the thorax, which is shorter and 

 more obtuse in front, and instead of having seven areolets, has only 

 five, the mesial posterior one being extremely narrow. 



It is very probable that this may only be a variety of X. ha mil is. 



